Explanation: In a scalar matrix, all the diagonal elements
are the same (scalar) value, and the off-diagonal elements are all zero.
In the given matrix, the diagonal elements are both 2, and all the off-diagonal
elements are zero. Therefore, the given matrix is a scalar matrix
Set of integers is a subset of
________.
A) Natural numbers
B) Whole numbers
C) Irrational numbers
D) Rational numbers
Explanation: Rational numbers include all integers as a subset. A rational number is any number that can be expressed as the ratio of two integers, where the denominator is not zero. Since every integer can be written in the form of a fraction with a denominator of 1, integers are considered rational numbers.
The greatest value of a class interval is called the_______.
A) Upper class limit
B) Lower class limit
C) Class width
D) Class frequency
A part or portion of the circumference of a circle is called______.
A) Radius
B) Chord
C) Diameter
D) Arc
Which equation is not equivalent to
b – 15 = 322?
A) b =52
B) b= 337
C) b – 13 = 330
D) b = 47
Explanation: To solve the equation b – 15 = 322, we need to isolate the variable b on one side of the equation.
Starting with the given equation:
b – 15 = 322
To isolate b, we can add 15 to both sides of the equation: b - 15 + 15 = 322 + 15 b = 337
Therefore, the solution to the equation
b – 15 = 322 is b = 337.
_______ bubbles tell us about thoughts or words of characters.
A) Speech
B) Small
C) Cry
D) Empty
Explanation: Speech bubbles are a visual means of conveying words spoken by characters in comic books and comic strips.
